Results 71 to 80 of about 334,315 (204)

Whistler mode waves and Hall fields detected by MMS during a dayside magnetopause crossing

Geophysical Research Letters, 2016
We present Magnetospheric Multiscale (MMS) mission measurements during a full magnetopause crossing associated with an enhanced southward ion flow. A quasi‐steady magnetospheric whistler mode wave emission propagating toward the reconnection region with ...
O. Le Contel, A. Retinò, H. Breuillard, L. Mirioni, P. Robert, A. Chasapis, B. Lavraud, T. Chust, L. Rezeau, F. D. Wilder, D. B. Graham, M. R. Argall, D. J. Gershman, P.‐A. Lindqvist, Y. V. Khotyaintsev, G. Marklund, R. E. Ergun, K. A. Goodrich, J. L. Burch, R. B. Torbert, J. Needell, M. Chutter, D. Rau, I. Dors, C. T. Russell, W. Magnes, R. J. Strangeway, K. R. Bromund, H. K. Leinweber, F. Plaschke, D. Fischer, B. J. Anderson, G. Le, T. E. Moore, C. J. Pollock, B. L. Giles, J. C. Dorelli, L. Avanov, Y. Saito   +38 more
doaj   +1 more source

Exploring Jupiter's Mid‐Latitude Dusk Magnetopause: The Impact of Magnetic Reconnection

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The Juno mission has elucidated magnetosphere processes, structure, and dynamics via multi‐instrument plasma and magnetic field observations. In this study, these instruments are used to identify magnetic reconnection during the Juno extended mission from a survey of 490 magnetopause crossings at the mid‐latitude southern dusk magnetopause ...
J. Montgomery, P. A. Delamere, A. R. Smith, C. Spitler, G. Fuller, R. W. Ebert, F. Allegrini, S. A. Fuselier, R. J. Wilson   +8 more
wiley   +1 more source

Separatrix regions of magnetic reconnection at the magnetopause [PDF]

Annales Geophysicae, 2009
Using data from the four Cluster spacecraft we study the separatrix regions of magnetic reconnection sites at the dayside magnetopause under conditions when reconnection is occurring in the magnetopause current layer which separates magnetosheath ...
T. Lindstedt, T. Lindstedt, Yu. V. Khotyaintsev, A. Vaivads, M. André, R. C. Fear, B. Lavraud, S. Haaland, S. Haaland, C. J. Owen   +9 more
doaj   +1 more source

Convective Amplification of Ionospheric Feedback by a Finite‐Duration Inertial Alfvén‐Wave Source

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract We investigate the ionospheric feedback instability (IFI) driven by a finite‐duration localized source of inertial Alfvén waves. Wave‐excited conductance perturbations undergo Pedersen mobility drift in the convection and wave electric fields and are amplified.
R. Rankin, W. Wang, Q.‐G. Zong
wiley   +1 more source

Magnetospheric Convection Patterns Inferred from High Latitude Activity [PDF]

, 1968
Magnetospheric convection patterns inferred from high latitude ionospheric currents - use and limitations of convection ...
Heppner, J. P.
core  

Cross‐Scale Energy Transfer at Dipolarization Front in the Earth's Magnetotail

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Dipolarization front (DF) is a key structure for energy conversion and transport in planetary magnetotails. Although multiscale processes have been observed around DFs, quantitative analyses of cross‐scale coupling remain lacking. Here, we calculate cross‐scale transfer rate for different energy channels at a DF using Magnetospheric Multiscale
Xiujuan Ou, Zhihong Zhong, Meng Zhou, Yongyuan Yi, Binwen Ge, Runqing Jin, Qianyun Xu, Ye Pang, Xiaohua Deng   +8 more
wiley   +1 more source

High latitude magnetospheric topology and magnetospheric substorm [PDF]

Annales Geophysicae, 2009
This study is focused on the problem of the localization of substorm expansion onset. In this context, the high latitude topology of transverse magnetospheric currents has been analyzed.
E. E. Antonova, E. E. Antonova, I. P. Kirpichev, I. P. Kirpichev, I. L. Ovchinnikov, K. G. Orlova, M. V. Stepanova   +6 more
doaj   +1 more source

First Observation of Four‐Band Ion Cyclotron Whistlers

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Ion cyclotron whistlers are frequently observed in low Earth orbit, typically formed when right‐hand polarized lightning whistlers undergo polarization reversal at crossover frequencies. In this study, we for the first time report a four‐band ion cyclotron whistler event detected by Van Allen Probe A.
Huicong Chen, Hui Zhu, Tao Xian, Gaopeng Lu, Yingying Zhao, Zhijie Qin, Zhenghao She   +6 more
wiley   +1 more source

The current sheet in Jupiter's magnetosphere [PDF]

Journal of Geophysical Research, 1976
A theoretical model is presented for the plasma in the Jovian magnetosphere whose pressure is comparable to the corotational energy density. The model predicts a thin current sheet of 1 Jupiter radius to 2 Jupiter radii half-thickness. The current sheet lies almost precisely in the magnetic equatorial plane and is not appreciably warped as suggested ...
openaire   +1 more source

The Long‐Term Trend of the Equatorial Electrojet Over Indian Sector

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The upper‐atmosphere cooling trend is well documented, while the long‐term trend of the ionospheric electrodynamics remains poorly understood. Using two geomagnetic observation data sets over Indian sector, we analyze the long‐term trend of the monthly‐median equatorial electrojet (EEJ) in 1967–2015 after removing the solar activity and ...
Ruilong Zhang, Xu Zhou, Yuzhou Wang, Libo Liu, Yiding Chen, Huijun Le   +5 more
wiley   +1 more source